Sash-lock.



H. G. VOIGHT.

SASH LOCK.

APPLIOATION FILED nu 12, 1909.

937,197. Y Patented 0ct.19,1909.

.u m AIminimunmM-MINI! @NITE ES ATENE HENRY G. VOIGIIT, OF NEW BRITAIN,CONNECTICUT, ASSIGNOR TO RUSSELL & ERWIN MANUFACTURING COMPANY, OF NEWBRITAIN, CONNECTICUT, A CORPORATION OF coNNEcTIcU'r.

SASII-LOCK.

Speciicaton of Letters Patent.

Patented Oct. i9, 1909.

Application led. May 12, 1909. Serial No. 495,482. V

To all whom it may concern:

Be it known that I, HENRY G. VOIGHT, a citizen of the United States,residing at New Britain, county of Hartford, State of Connecticut, haveinvented certain new and useful Improvements in Sash-Locks, of which thefollowing is a full, clear, and eXact description.

My invention relates to improvements in sash fasteners, the object beingto provide simple and effective means for locking the fastener againstbeing tampered with.

in the accompanying drawings, Figure 1 is a plan view of my invention.Fig. 2 is a view of the under side of one part of the sash fastenershowing the sash fastening member in one position and locked againstoperation. Fig. 3 is a similar view showing the sash fastener member ina second position and partially unlocked. Fig. 4 is a sectional view ofFig. 2 on the line Fig. 5 is a View of a detached detail.

The general form of the sash fastening device is old and well known andhence will not be described at great length since the particular noveltyresides in the locking mechanism for the fastening element.

l represents a frame or case designed to be secured to the upper edge ofthe lower section of a window. This case l carries the well knownfastener element 2, which is pivoted at 8, whereby said fastener may beturned by means of a handle 4.

5 is a keeper plate secured to the lower part of the upper windowsection in the usual manner, and provided with the well known lockingshoulder 6 with which the cam fastener 2 coacts. As shown in Fig. l, thecam fastener is in position to lock the window sashes together wherebythe lower section cannot be pushed up nor the upper section pulled down.When the handle 4 is swung to a position directly opposite to that shownin Fig. l, the cam 2 is entirely freed from the second part of thefastener, disengaging the sash and permitting either section of thewindow to be moved. To hold the cam fastener2 in the locking positionshown in Fig. l, or in the opposite position referred to, namely, theunlocked position, I provide an elongated under-bearing 7 arrangedwithin the case l and designed to turn with the spindle or pivot 3 ofthe cam 2, this under-bearing being suitably connected so that it cannotturn independently of the cam 2.

8 is a spring carried within the case l and bearing against theelongated under-bearing 7 to frictionally hold it against movement. Itis preferable to use two'companion springs 8 8*l which bear on oppositesides of the elongated under-bearing 7. When the cam 2 is turned by thehandle 4, the springs S--Sa bow outwardly as best seen in Fig. 3, andthe position of the under-bearing 7 in throwing the cam from thelockedto the unlocked position is of necessity reversed.

My improved locking means comprises a blocking` out member or arm 9,pivotally mounted in a suitable bearing 10, the arm 9 being shiftablefrom the position shown in Fig. 2 to that shown in Fig. 3 (or viceversa) only by means of a suitable key 1l. ln the particular form ofbearing 10 shown in the drawings, the same constitutes the cylinder of awell known'pin-cylinder lock and in this case it is preferable toprovide two lateral extensions or housings 12-12a for the pin tumblersindicated in dotted lines at 14-l4a, Fig. 2. When the proper key ll isinserted, the blocking out member 9 may be swung to the positionindicated in Fig. 2. 'This position of the blocking outv member is suchrelatively to the spring 8 that it can not be bowed suiliciently topermit the elongated under-bearing 7 to turn to the position indicatedin Fig. 3, hence, so long as the blocking out member 9 remains in theposition indicated in Fig. 2, the sash fastening cam 2 cannot beshifted. When the position of the blocking out member 8 is reversed, asshown in Fig. 3, the cam 2 may be turned against the action of springsS-Sa. rlhe springs 8--8l may be held at their ends between suitable lugslo, while, when the parts are assembled, an under cover-plate 16 may besecured in place Vunderneath said springs to house the same and holdthem in place, as best seen in Fig. 4.

In operation, the user may fasten the windows and then, by inserting asuitable key 11, lock the cam fastener against movement. By having twotumbler housings l2-12a, the key ll may be easily withdrawn whilestanding in either of its two positions, namely, the locking position orthe unlocking position. By this means a single key may be employed tolock any number of vso Windows to the greater security of the building.

What I claim is:

l. In a device of the character described, a pivotally mounted sashfastener element, an elongated onder-hearing connected thereto, ablocking out device or lock arranged to coaet With Said under-hearing toprevent the rotation of the Same, and means for moving` said blockingout device from the operative to an inoperative position and vice versa.

2. In a device of the character described, a pivotally mounted sashfastener element, an elongated under-bearing connected thereto, a springarranged to prees against said l under-bearing, and a lock to hold Saidunder-bearing from beingN rotated to permit the sash fastener to bereleased.

HENRY G. VOIGHI.

VitneSses M. S. VIARD, C. E. RUSSELL.

